Understand Cross-Origin Resource Sharing (CORS) from the ground up. Learn how browsers enforce the same-origin policy, how preflight requests work, and how to configure CORS correctly in Node.js, Express, FastAPI, Spring Boot, and Go.
A practical guide to the OWASP Top 10 (2021) for developers. Learn how Injection, XSS, CSRF, SSRF, Broken Access Control, and 5 more critical vulnerabilities work — with real attack scenarios and TypeScript defense code.
Master the foundational security concepts every developer needs. Learn CIA triad, threat modeling with STRIDE, defense in depth, zero trust architecture, and how to apply them in real applications.
Master web security from fundamentals to production hardening. A comprehensive roadmap covering OWASP Top 10, authentication security, XSS, SQL injection, CSRF, API security, and more.